What absorbs at 3588 cm⁻¹ in an FTIR spectrum?
A band near 3588 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 3 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Silicon-oxygen (Si-O) confidence 1.0
“The band peak at 480 cm-1 is associated with bending frequency of O-Si-O The stretching cm-1 band at 3588 and libration band at 631 cm-1 showed in Fig.”
Asmi 等 - 2016 - Synthesis and Characterisation of Composite based DOI: 10.1063/1.4945463 -
Acetate confidence 1.0
“(C-O/carboxyl OH) OH stretching in and aromatic amino 3588 3610 400 0.1 water functions in the”
Water-Activated Semiquinone Formation and Carboxylic Acid Dissociation in Melanin Revealed by Infrared Spectroscopy DOI: 10.3390/polym13244403 -
Hydroxyl (O-H) confidence 0.9
“Band shift from 3588 to 3617 indicates weakened H-bond.”
Noguchi - 2008 - FTIR detection of water reactions in the oxygen-ev DOI: 10.1098/rstb.2007.2214
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